• support EGS900 and GSM1800 dual-band

Data transmission content: voice and data

Short message: MT, MO, CB and PDU mode

• audio interface: analog signals (microphone, headphones, hands-free handle)

• communication interface: RS232 (bidirectional transmission of instructions and data)

• module reset: adopt the AT or reset when power supply drop

• serial communication baud rate: 300 BPS - 115 KBPS

• automatic baud rate range: 4.8 KBPS to 115 KBPS

Power supply: single power 3.3 V to 5.5 V

, low power consumption, are in a state of sleep only 3.0 mA current

• support three transfer rate speech coding

Basic hands-free operation, standard protocol of authentication

• using GSM Phase2/2 + standard

Accessories: antenna, serial port and power supply

• support voice, data and fax services and short message